20. How to Rebut Logical Fallacies - Public leadership Institute (2024)

Progressives have gotten so used to hearing bald-faced political lies that perhaps we have become a little less ready to recognize rhetorical tricks. Let us consider five of the most common informal logical fallacies—arguments that may sound convincing but actually rely on a flaw in logic.

(1) Red Herring Fallacy

Also known as: misdirection, smokescreen, clouding the issue, beside the point, and the Chewbacca defense.

A Red Herring argument is one that changes the subject, distracting the audience from the real issue to focus on something else where the speaker feels more comfortable and confident.

EXAMPLE: “It may be true that the minimum wage should be adjusted, but the real solution is to eliminate burdensome government regulations so businesses can grow and be able to pay their employees higher salaries.”

Your response should be:

Say . . .
This is not an either-or question. Right now, we’re debating specific legislation before the legislature/council to increase the minimum wage to $15 per hour. I’m saying it provides hard-working families with income to spend on their basic needs. Let’s talk about that.

(2) Strawman Fallacy

Also known in the U.K. as Aunt Sally.

A Strawman argument is an intentional misrepresentation of an opponent’s position. It sets up an easy (and false) target for the speaker to knock down.

EXAMPLE: “The pro-abortion lobbyists oppose a waiting period and sonogram requirement because they favor abortion on demand. And abortion on demand means eliminating all consideration of the unborn child as well as women’s health.”

Your response should be:

Say . . .
That is not the issue before this legislature. We are currently debating whether politicians should interfere in a woman’s most important and personal life decisions. I’m saying our goal must be to promote people’s health and well-being, not impose someone’s beliefs on others.

(3) Slippery Slope Fallacy

Also known as absurd extrapolation, thin edge of the wedge, and camel’s nose under the tent.

A Slippery Slope argument is a version of a Red Herring. Specifically, this is a claim that a policy which takes a small step in one direction will lead to a chain of events that will result in drastic change.

EXAMPLE: “If we require background checks for the sale of all guns, including private sales at gun shows, it will lead to the federal government obtaining the information to create a list of who owns guns which, in time, will lead to the confiscation of privately-owned firearms.”

Your response should be:

Say . . .
We are debating a specific proposal which clearly and obviously does not include your concern. If I argue for driver’s licenses are you going to say it will lead to bicycle licenses? If I argue for cleaner drinking water are you going to say it will lead to a shutoff of all water? Let’s debate the issue of background checks—why do you think we should sell these guns to any adult whatsoever, no questions asked?

The gun lobby uses Slippery Slope more than anyone. But it’s also fairly common in many other areas of debate, e.g., If we allow the sale of marijuana, it will lead to the legalization of all drugs.

(4) Begging the Question Fallacy

Also known as: assuming the initial point, chicken and the egg, and circular reasoning.

In an argument Begging the Question, the conclusion is assumed in one of the argument’s premises, and that premise is not supported by independent evidence. Often called circular reasoning, it begins and ends at the same place. [Sorry, it has nothing to do with prompting someone to ask a question.]

EXAMPLE: “Our Second Amendment rights are absolute, so gun control laws are illegal.”

Your response should be:

Say . . .
I am arguing for a specific policy and you are responding with a circular argument that’s supported by no evidence at all. Background checks for gun purchases have been required by state and federal laws for decades, the only question is whether we’re going to apply the law to everyone or continue to have a nonsensical and dangerous loophole.

(5) Post Hoc Fallacy

From the Latin phrase “post hoc, ergo propter hoc,” which means “after this, therefore because of this.” Also known as false cause.

A Post Hoc argument is one where the speaker confuses correlation with causation, specifically, that because one event followed another, the first event caused the second. Is there a so-called Education Reform argument that’s not Post Hoc?

EXAMPLE:Schools that teach Latin have higher test scores, therefore if we establish a school that teaches Latin, it will improve student achievement.”

Your response should be:

Say . . .
You are confusing correlation with causation. There is absolutely no proof that teaching Latin causes children to score higher but there is every reason to believe that high-scoring children take Latin. Let us get back to the real point: Our families and our communities need our public schools to provide each and every child the opportunity to achieve their fullest potential in life. There are no standardized children, each one has their own challenges and needs. The question is, how are we going to ensure that?

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20. How to Rebut Logical Fallacies - Public leadership Institute (2024)

FAQs

How to defend against logical fallacies? ›

How to counter logical fallacies. To counter the use of a logical fallacy, you should first identify the flaw in reasoning that it contains, and then point it out and explain why it's a problem, or provide a strong opposing argument that counters it implicitly.

What is the surest way to eliminate fallacies from your argument? ›

8- What is the surest way to eliminate fallacies from your arguments? Confirm the evidence behind your arguments. By ensuring that your arguments are based on solid evidence, you can reduce the likelihood of fallacies.

What is the best way to avoid logical fallacies? ›

Avoid using words or phrases that are unclear, exaggerated, or emotional. Instead, use words or phrases that are specific, accurate, and neutral. Also, avoid using logical connectors, such as therefore, because, or however, incorrectly or without justification.

What is an example of a logical fallacy attacking the person? ›

In a debate, an ad hominem argument might look like: “You have no idea what you're talking about; you've only lived here for six months.” “It's hard to take your claims seriously because you spend your days playing video games.”

What are fallacies scare tactics? ›

With scare tactics, a threat is a substitute for evidence. Instead of proving that something scary will happen, someone using the scare tactics fallacy assumes the dangers of something without verifying it. Scare tactics skip the crucial step of validation.

How to spot logical fallacies? ›

Fallacies can be either illegitimate arguments or irrelevant points, and are often identified because they lack evidence that supports their claim. Avoid these common fallacies in your own arguments and watch for them in the arguments of others.

What is the strawman fallacy? ›

Straw man fallacy is the distortion of someone else's argument to make it easier to attack or refute. Instead of addressing the actual argument of the opponent, one may present a somewhat similar but not equal argument.

What is a red herring fallacy? ›

This fallacy consists in diverting attention from the real issue by focusing instead on an issue having only a surface relevance to the first.

How do you argue without fallacies? ›

The best way to argue a point without falling into the trap of common fallacies is to know your subject well and be equipped with plenty of evidence to support each statement or proposition that leads to your conclusion.

How can fallacies be corrected? ›

To fix a post hoc ergo propter hoc fallacy, analyze the two situations that appear to be related, and identify the evidence supporting the second event being caused by the first. Make sure you're not arguing that the outcome was solely due to the sequence of events.

What is the once a killer always a killer fallacy? ›

Once a killer, always a killer. Appeals to a common belief of some people, often prejudicial, and states everyone holds this belief. Also called the Bandwagon Fallacy, as people “jump on the bandwagon” of a perceived popular view.

How to refute fallacies? ›

The best way to argue a point without falling into the trap of common fallacies is to know your subject well and be equipped with plenty of evidence to support each statement or proposition that leads to your conclusion.

How can you avoid committing the fallacy fallacy? ›

This fallacy happens when someone sets a conclusion based on inadequate evidence. Writers must state their conclusions only after researching all relevant facts to avoid committing this fallacy. Example: “Even though I just started this new job, I am going to start looking for a new job because this one is too hard.”

How to argue without logical fallacies? ›

How to Support an Argument and Avoid Logical Fallacies
  1. Conclusion: This may or may not come at the end and is the author's main idea.
  2. Evidence: This is whatever the author or speaker uses to support the conclusion. ...
  3. Assumption (or Warrant): This is rarely stated explicitly in the argument, but is absolutely central.

How to avoid false cause fallacy? ›

To avoid the false cause fallacy, it is important to consider alternative explanations for a problem. Instead of assuming that one event causes another, you should look for evidence that supports or rejects your hypothesis. Additionally, you should think of other possible factors that could influence the outcome.

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